#include<stdio.h>
enum flag{
  ONE =1,
  TOW =2,
  TREE=4,
  FOUR=8,
  FIVE=16
};
void Print(int flags)
{
  if(flags&ONE)printf("hello 1\n");
  if(flags&TOW)printf("hello 2\n");
  if(flags&TREE)printf("hello 3\n");
  if(flags&FOUR)printf("hello 4\n");
  if(flags&FIVE)printf("hello 5\n");
}
int main()
{
  printf("---------------------\n");
  Print(ONE);
  printf("---------------------\n");
  Print(ONE|TOW);
  printf("---------------------\n");
  Print(ONE|TOW|TREE|FOUR|FIVE);
  printf("---------------------\n");
  return 0;
}

